Prosecution Insights
Last updated: April 19, 2026

Examiner: FETTEROLF, BRANDON J

Tech Center 1600 • Art Units: 1622 1626 1628 1642

This examiner grants 48% of resolved cases

Performance Statistics

47.5%
Allow Rate
-12.5% vs TC avg
257
Total Applications
+13.0%
Interview Lift
1502
Avg Prosecution Days
Based on 177 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
19.6%
§102 Novelty
28.5%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18281162 PROCESS FOR PREPARING POLYCYCLIC ODORANTS Final Rejection SYMRISE AG
17906138 TREATMENT OF EPILEPSY Non-Final OA Katholieke Universiteit Leuven
18546633 Treatment of Hypertension-Related and Vascular Diseases Non-Final OA The Medical College of Wisconsin, Inc.
18455206 SUBSTITUTED HETEROCYCLES FOR TREATING CANCER Non-Final OA Northwestern University
17783455 METHODS OF CONTROLLING OR PREVENTING INFESTATION OF PLANTS BY A PHYTOPATHOGENIC MICROORGANISM OF THE GENUS MACROPHOMINA SPP. Final Rejection SYNGENTA CROP PROTECTION AG
18550234 KRAS G12D INHIBITORS Non-Final OA Bristol-Myers Squibb Company
18833767 SUBSTITUTED HETEROCYCLIC CSNK1 INHIBITORS Non-Final OA Dana-Farber Cancer Institute, Inc.
18260293 COMPOSITIONS COMPRISING ANATABINE AND USES THEREOF Non-Final OA Philip Morris Products S.A.
18002403 COMPOSITIONS AND METHODS FOR PARASITE CONTROL Non-Final OA Philip Morris Products S.A.
18248663 USE OF THE NAV1.6 SODIUM CHANNEL BLOCKER (S)-4-((1-BENZYLPYRROLIDIN-3-YL)(METHYL)AMINO)-2-FLUORO-5-METHYL-N(THIAZOL-4-YL)BENZENESULFONAMIDE, TOGETHER WITH STRONG INDUCERS OF CYTOCHROME P450 3A4, IN THE TREATMENT OF CONDITIONS ASSOCIATED WITH NAVI.6 ACTIVITY Non-Final OA Xenon Pharmaceuticals Inc.
18570520 PROTEASE INHIBITORS AND METHODS OF USE Non-Final OA The Cleveland Clinic Foundation
18033724 COMPOUNDS FOR THE TREATMENT OF VIRAL INFECTIONS Non-Final OA MERCK PATENT GMBH
18260744 Non-Covalent Inhibitors of the Main Protease of SARS-CoV-2 and Methods of Use Non-Final OA YALE UNIVERSITY
18564778 METHODS OF TREATING BREAST CANCER Non-Final OA ASTRAZENECA AB
18010695 TARGETED ABERRANT ALPHA-SYNUCLEIN SPECIES AND INDUCED UBIQUITINATION AND PROTEOSOMAL CLEARANCE VIA CO-RECRUITMENT OF AN E3-LIGASE SYSTEM Non-Final OA THE GENERAL HOSPITAL CORPORATION
17912272 TARGETED DEGRADERS OF ABERRANT TAU BASED ON THE PET TRACER PBB3 Final Rejection THE GENERAL HOSPITAL CORPORATION
19025976 METHODS OF USE FOR AZA-QUINAZOLINE COMPOUNDS Non-Final OA Iambic Therapeutics, Inc.
18357320 AZA-QUINAZOLINE COMPOUNDS AND METHODS OF USE Non-Final OA Iambic Therapeutics, Inc.
18178192 AGENTS FOR THE TREATMENT OF DISEASES BY INHIBITION OF FOXO1 Non-Final OA THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
18030390 NOVEL REDOX-BASED THERAPEUTIC APPROACH FOR TREATMENT OF CANCER Non-Final OA THE PENN STATE RESEARCH FOUNDATION
18295484 EPIGENETIC MODIFIERS TO TREAT RETINAL DEGENERATIONS Non-Final OA The Penn State Research Foundation
18227103 NOVEL COMPOUNDS Non-Final OA AC Immune SA
18346745 BIFUNCTIONAL DEGRADERS OF HEMATOPOIETIC PROGENITOR KINASE AND THERAPEUTIC USES THEREOF Non-Final OA Gilead Sciences, Inc.
18248068 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
18030529 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
18030527 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
18030530 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
18248071 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
18030537 MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR Final Rejection VERTEX PHARMACEUTICALS INCORPORATED
17916904 TOPICAL USE OF ERLOTINIB FOR TREATING KERATODERMAS IN CHILDREN Final Rejection UNIVERSITE PARIS-SACLAY

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